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Separation of Hydrogen-Nitrogen Gases by PDMS-NaA zeolite Mixed Matrix Membranes

PDMS-NaA zeolite 혼합기지분리막에 의한 수소-질소 분리

  • Received : 2015.06.04
  • Accepted : 2015.06.26
  • Published : 2015.06.30

Abstract

PDMS-NaA zeolite membranes were prepared by adding 0~40 wt% NaA zeolite. Based on SEM observation, NaA zeolite was dispersed in the PDMS-NaA zeolite membranes with $2{\sim}5{\mu}m$. The permeabilities of $H_2$ and $N_2$ gases through PDMS-NaA zeolite membranes increased as NaA zeolite contents increased and $H_2$ gas had better permeabilities than $N_2$. The selectivity ($H_2/N_2$) of PDMS-NaA zeolite membranes increased as NaA zeolite contents increased.

PDMS에 NaA zeolite를 0~40 wt% 가하여 PDMS-NaA zeolite 막을 제조하였다. SEM 관찰에 의하면 PDMS-NaA zeolite 막 내에 분산되어있는 NaA zeolite 입자의 크기는 $2{\sim}5{\mu}m$이었다. PDMS-NaA zeolite 막의 $N_2$$H_2$ 투과도는 막 내의 NaA zeolite 함량이 증가하면 증가하였고, $N_2$보다는 $H_2$의 투과도가 더 컸다. 그리고 PDMS-NaA zeolite 선택성($H_2/N_2$)은 NaA zeolite 함량이 증가하면 증가하였다.

Keywords

References

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